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- import time
- from config import set_config
- from utils import request_post, filter_video_status
- from log import Log
- from db_helper import RedisHelper
- config_ = set_config()
- log_ = Log()
- def get_videos_from_flow_pool(app_type, size=1000):
- """
- 从流量池获取视频，循环获取，直到返回数据为None结束
- :param app_type: 产品标识 type-int
- :param size: 每次获取视频数量，type-int，默认1000
- :return: videos [{'videoId': 1111, 'flowPool': ''}, ...]
- """
- # 获取批次标识，利用首次获取数据时间戳为标记
- batch_flag = time.time()
- request_data = {'appType': app_type, 'batchFlag': batch_flag, 'size': size}
- videos = []
- while True:
- result = request_post(request_url=config_.GET_VIDEOS_FROM_POOL_URL, request_data=request_data)
- if result is None:
- break
- if result['code'] != 0:
- log_.info('batch_flag: {}, 获取流量池视频失败'.format(batch_flag))
- break
- videos.append(result['data'])
- return videos
- def get_videos_remain_view_count(app_type, videos_info):
- """
- 获取视频在流量池中的剩余可分发数
- :param app_type: 产品标识 type-int
- :param videos_info: 视频信息 (视频id, 流量池标记) type-list，[(video_id, flow_pool), ...]
- :return: data type-list，[(video_id, flow_pool, view_count), ...]
- """
- if not videos_info:
- return []
- videos = [{'videoId': info[0], 'flowPool': info[1]} for info in videos_info]
- request_data = {'appType': app_type, 'videos': videos}
- result = request_post(request_url=config_.GET_REMAIN_VIEW_COUNT_URL, request_data=request_data)
- if result is None:
- return []
- if result['code'] != 0:
- log_.info('获取视频在流量池中的剩余可分发数失败')
- return []
- data = [(item['videoId'], item['flowPool'], item['viewCount']) for item in result['data']]
- return data
- def get_score(video_ids):
- return [1] * len(video_ids)
- def predict(app_type):
- """
- 对流量池视频排序，并将结果上传Redis
- :param app_type: 产品标识 type-int
- :return: None
- """
- # 从流量池获取数据
- videos = get_videos_from_flow_pool(app_type=app_type)
- if len(videos) <= 0:
- log_.info('流量池中无需分发的视频')
- return None
- # video_id 与 flow_pool 进行mapping
- video_ids = set()
- log_.info('流量池中视频数：{}'.format(len(video_ids)))
- mapping = {}
- for video in videos:
- video_ids.add(video['videoId'])
- mapping[video['videoId']] = video['flowPool']
- # 对视频状态进行过滤
- filtered_videos = filter_video_status(list(video_ids))
- log_.info('filter videos status finished, filtered_videos nums={}'.format(len(filtered_videos)))
- if not filtered_videos:
- log_.info('流量池中视频状态不符合分发')
- return None
- # 预测
- video_score = get_score(filtered_videos)
- log_.info('predict finished!')
- # 上传数据到redis
- redis_data = {}
- for i in range(len(video_score)):
- video_id = filtered_videos[i]
- score = video_score[i]
- for flow_pool in mapping.get(video_id):
- value = '{}-{}'.format(video_id, flow_pool)
- redis_data[value] = score
- key_name = config_.FLOWPOOL_KEY_NAME + str(app_type)
- redis_helper = RedisHelper()
- # 如果key已存在，删除key
- if redis_helper.key_exists(key_name):
- redis_helper.del_keys(key_name)
- # 写入redis
- redis_helper.add_data_with_zset(key_name=key_name, data=redis_data, expire_time=24 * 3600)
- log_.info('data to redis finished!')
- if __name__ == '__main__':
- # res = get_videos_from_pool(app_type=0)
- # res = get_videos_remain_view_count(app_type=0, videos_info=[('12345', '#2#1#111')])
- # print(res)
- log_.info('flow pool predict start...')
- for app_name, app_type in config_.APP_TYPE.items():
- log_.info('{} predict start...'.format(app_name))
- predict(app_type=app_type)
- log_.info('{} predict end...'.format(app_name))
- log_.info('flow pool predict end...')
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